Improvement in cultivators



W. BANGROFT.

Cultivator.

No. 11,924. Patented Nov 14, 1854.

Witnesses:

f M 0 I Inventor.

UNITED STATES PATENT OFFICE.

WILLIAM BANOROFT, OF \VHITEFORD, OHIO.

IMPROVEMENT lN CULTIVATORS.

Specification forming part of Letters Patent No. 11,924, dated November 14, 1854.

To all whom it may concern:

Be it known that I, WILLIAM BANCROF1,of \Vhiteford, in the county of Lucas and State of Ohio, have invented a new and useful Improvement in Cultivators,ot' which the following is a specification.

To enable others skilled in the art to make and use my invention, 1 will proceed to describe its construction and operation, reference being had to the annexed drawings, forming a part of this specification, in which- Figure 1 is a perspective view of my improvement. Fig. 2 is a side view of the same.

Similar letters refer to like parts.

a is the frame of the cultivator; b, triangular-shaped knife; 0, forward adjustable standard; d, adjusting-screw; e, adjusting-nut; fg, lower standards; It, hinges of the same; hh nuts; z'k, adjustable plowshare; 'i, adjustingnut lm n, spring-teeth.

In the construction of my improved cultivator I make the frame a of the form seen in my drawings. To this frame the standards 0 f g are attached, projecting downward. Thelower parts of these standards fasten in the triangular knife I). This knife is made with a sharp edge all round. The standards are also sharpened on their front edges. The forward standard, c, hooks into the knife b in the manner shown. The rear standards,f g, have hinges f It, so that by means of the adjusting-screw d and the adjusting-nut 0 the forward standard, 0, may be raised or lowered as desired, giving a corresponding adjustment to the forward end of the knife I).

In practice my cultivator passes along the surface of the ground, cutting off the weeds and separating the top of the earth in a thin slice. The'depth ot' the slice is regulated by means of the adjusting-screw d and the nut c.

When it is desired to make the knife cut deeper the standard 0 is depressed, which sinks the point of the knife farther into the earth. The upper part of the standardsfg are secured to the frame by means of the nuts h h To the central portions of the frame spring rake-teeth l m n are attached. These serve to harrow the ground. They are made with springs to prevent any clogging. In passing over the ground my cultivator, as before stated, simply cuts 0d a slice of the earth, and thus destroys the weeds; butit does not turn a furrow. In order to throw up a furrow when desired, I attach a plowshure, i k, to the rear part of the frame, as shown, securing the same to the frame by means of the nut t". I can, if desirable, have two of these plowshares, one on each end of the frame. This plowshare He is made adjustable by means of the nut i, so that a furrow of greater or less depth may be turned, as may be desired.

In cultivating drilled crops it is very desira ble to have some means of throwing up afurrow.

My improvement is cheap in construction and very effective in operation. It completely cuts oft all weeds from the surface over which it passes, and forms a highly-valuable implement of assistance to all persons engaged in agricultural pursuits.

I am aware that a triangular knife like mine has been used; but

What I claim is- The method of making the knife adjustable upon the frame a by means of standard 0 and hinged standardsfand g, as set forth.

WILLIAM BANOROFT.

Witnesses:

STEPHEN PORTER, D. B. STOUT. 

